The headword, perhaps quoted from somewhere (but see next note), is a feminine noun in the accusative plural; see generally LSJ s.v. sxadw/n (also with accent on the penult: sxa/dwn), bee larva or honey-cell. The headword form occurs at Aristotle, History of Animals 554a15 and 627a30, but there is an earlier instance in Aristophanes (fr. 569 Kock/Edmonds; quoted in Athenaeus, Deipnosophists 9.372C [9.14 Kaibel]).
[1] The initial gloss follows the scholia to Theocritus, Idylls 1.147a (s.v. sxado/nwn, genitive plural form), from which the entry was probably generated.
[2] The lemma is glossed identically in Photius (Lexicon sigma889 Theodoridis), and similarly elsewhere: Hesychius sigma2949 (s.v. sxado/nes, i.e. nominative plural), Synagoge sigma418 (s.v. sxado/na, i.e. accusative singular), Etymologicum Magnum 739.42 (Kallierges), and ps.-Zonaras 1699.7. See also Pollux 1.254, 7.148.